Brush.



W. H. MILLS.

BRUSH.

APPLIGATION FILED JULY 1e, 1913.

1,677,851. Patented Nov.4,1913.

LUNITED STATES PATENT oEEIcE.

WILLIAM II. MILLS, OF WOOSTER, OHIO, ASSIGNOR OF ONE-HALF IO D. J. FOSS, OF

WOOSTER, OHIO.

BRUSH.

Specification of Letters Patent.

Patented Nov. 4, 1913.

To all who/m, t may concern.'

Be it known that I, WILLIAM H. MILLS, a citizen of the United States, residing at Wooster, in the county of Wayne and State of Ohio, have invented a new and useful Brush, of which the following is a speci cation.

My invention relates to improvements in brushes, especially at paint and varnish brushes; and its object is to provide means for thickening the brush material at and near the center of the brush head, to prevent wearing of the brush on account of painting corners, relief work, and the like, and at the same time retainingthe flat appearance of the brush on the outside thereof. I attain this object by the device shown in the accompanying drawing, in which similar letters of reference indicate like parts.

Referring thereto, Figure l is a side view of a brush handle embodying my invention; Fig. 2 is a cross section of the brush-head on the line X-Y of Fig. 1.

In the drawing, II is the handle proper, F the head, C the ferrule or band which incloses the mass of brush material, a portion of which is shown at B for illustration, and D is the plug, which may be made integral with the head, as shown in Fig. l.

E shows the abutment where the plug is hollowed increasingly from the ends to the central portion of the same. The lower end of the plug D may be tapered downwardly, or it may be hollowed out to receive the brush material in the usual well known way.

The brush is constructed by filling in the brush material into the concavity of the plug, as shown at B and a layer of brush material is spread over the same so as to leave the exterior surface of the brush flat in appearance, while the central portion, longitudinally, has an increased thickness, as shown in Fig. 2, intermediate the ends of the brush.

I am aware it is not new to construct a brush-head with longitudinal groove or grooves therein extending lengthwise, across which bristles are secured transversely, and such I do not claim. My invention is radically dilferentiated therefrom in that the hollows or concavities of the brush-head do not extend lengthwise, but crosswise of the brush-head, parallel with the direction of Y the bristles, and gradually increase in depth from each end of the brush-head to the middle thereof so as to gradually thicken the layers of brush material on opposite sides of the brush by the filling up of said hollows to a level exterior surface from end to end of the brush-head. The depth of the concavity may be increased or diminished to suit the amount of increased brush material required for use in different grades or styles of brushes, and the outside layer of brush material B may be extended above theline of the abutment E, or be in line therewith, as may be desired. By the means aforesaid I add strength and wearing qualities to a liat brush between the ends thereof, whereby it will not become hollowed by the usual central wear resulting from working around corners and sharp edged surfaces frequently encountered in ordinary painting and varnishing. At the same time I preserve the pleasing effect of a plain flat surface upon the exterior of the brush head, while providing a gradual increase in thickness of stock toward its longitudinal center, which is a very desirable quality for elasticity and service in a flat brush.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is- A fiat brush, comprising a brush head having a plug with a concave surface, said concavity extending transversely of the brush-head and gradually increasing in depth toward the middle portion thereof from each end of the brush-head on both sides thereof, and brush material lling the concavity of the plug, and means for securing said material to the brush head, substantially as set forth.

In witness whereof, I hereunto set my hand this 31st day of May A. D. 1913.

WM. H. MILLS.

In presence of two witnesses:

HIRAM SWARTZ, MAnLoN RoUcI-I.

Copies of this patent may be obtained for live cents each, by addressing the Commissioner of Patents, Washington, D. C. 

